Plasma diffusion across a magnetic field is an important topic in magnetic confinement of fusion plasma. It especially concerns how plasma transport is related to strength of an external
magnetic field
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to ...
, B.
Classical diffusion predicts 1/B
2 scaling, while
Bohm diffusion The diffusion of plasma across a magnetic field was conjectured to follow the Bohm diffusion scaling as indicated from the early plasma experiments of very lossy machines. This predicted that the rate of diffusion was linear with temperature and ...
, borne out of experimental observations from the early confinement machines, was conjectured to follow 1/B scaling.
Hsu diffusion predicts 1/B
3/2 scaling, which is presumably the best confinement scenario in magnetized plasma.
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See also
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Bohm diffusion The diffusion of plasma across a magnetic field was conjectured to follow the Bohm diffusion scaling as indicated from the early plasma experiments of very lossy machines. This predicted that the rate of diffusion was linear with temperature and ...
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Classical diffusion
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Hsu diffusion
References
Diffusion
Plasma physics
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